speedlify2

Lighthouse lab metrics, Axe, and Chrome UX Report field data for a list of sites recorded and compared over time. Follow us on Mastodon or Bluesky.

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eleventy-starter-typescript.vercel.app

https://eleventy-starter-typescript.vercel.app/

100PERF 100A11Y 96BEST 100SEO ✓AXE –CWV

Ranks Overall #338 Build Awesome Starters #43

Data from Oct 3, 2026, 5:55 PM UTC old Measured once a week · 7 runs since Aug 20, 2026

Elsewhere: PageSpeed Insights · Calibre · Treo · CrUX Vis · Tame the Bots · Scoring Calculator · Wayback Machine

Lab data is measured using Lighthouse, Mobile mode unless otherwise specified. Field data is reported from Chrome UX Report (using p75 measurements).

Stack

Vercel Hosted by Vercel

Lighthouse Scores LAB Simulated

100
Performance
no change
100
Accessibility
no change
96
Best Practices
↓ -4 (-4%)
100
SEO
no change

Metrics LAB

No field data: the Chrome UX Report is not being collected for this project, so every figure below is from the Lighthouse run.

Metric Lab Simulated
Value Change / range Trend
LCP CWV (estimate) Largest Contentful Paint 780 ms good ↓ -17 ms (-2.1%) 772 ms – 896 ms
INP CWV Interaction to Next Paint — field only, no lab run can measure it n/a —
CLS CWV (estimate) Cumulative Layout Shift 0 good → no change 0 – 0
TBT Total Blocking Time 0 ms good → no change 0 ms – 0 ms
FCP First Contentful Paint 780 ms good ↓ -17 ms (-2.1%) 772 ms – 896 ms
Speed Index 780 ms good ↓ -17 ms (-2.1%) 772 ms – 896 ms
TTFB Time to First Byte 614 ms good ↓ -24 ms (-3.8%) 612 ms – 738 ms

LCP Subparts LAB Unthrottled

The subparts attribute LCP to your server, resource discovery, download, or rendering. Note that the Lab LCP shown above is a simulated throttled estimate.

element render delay 38 ms
time to first byte 20 ms

Page weight

Metric Value Change / range Trend
Page Weight 1.1 kB ↑ +396 B (+54.5%) 726 B – 1.1 kB
Requests 2 ↑ +1 (+100%) 1 – 2
Third-party Weight 0 B → no change 0 B – 0 B
Third-party CPU 0 ms → no change 0 ms – 0 ms
Unused JS 0 B → no change 0 B – 0 B
Unused CSS 0 B → no change 0 B – 0 B

By resource type

Type Transfer Share Size Requests
document 100% 936 B 1
Total 1.1 kB 2

Without JavaScript

The same load, photographed twice at 412×823: once with scripts disabled, once as rendered.

Scripts disabled
As rendered

0% of pixels differ — they are identical. A shifted layout counts as difference, so a <noscript> banner alone can account for a large figure.

Page health

Metric Value Change / range Trend
Main Thread Work 83 ms ↑ +31 ms (+59.5%) 52 ms – 88 ms
Long Tasks 0 → no change 0 – 0
DOM Elements 12 → no change 12 – 12
Axe Violations Violating nodes from a full Axe CLI run (more than Lighthouse reports) 0 → no change 0 – 0
A11y Failures 0 → no change 0 – 0
A11y Failing Nodes 0 → no change 0 – 0

Main thread work

Task Time Share Duration Simulated
other 66% 55 ms
style layout 20% 17 ms
script evaluation 10% 8 ms
paint composite render 2% 2 ms
parse HTML 1% 1 ms
script parse compile 0% 0 ms
Total 83 ms

Axe violations axe-core 4.13.0, full rule set

0 violating nodes across 0 rules, 41 passing. This is a standalone Axe CLI run and is stricter than the subset Lighthouse already includes.

Best Practices failures 1 of 18 audits

  • errors-in-console — Browser errors were logged to the console 1 item

Hygiene

HTTPS HSTS CSP Clickjacking protection Origin isolation Trusted Types bfcache h2 1 console error

Measurement log

Every stored run for this URL, newest first.

When Scores PerfLCPCLSTBTWeight RunsSpreadBenchTook Archive
Oct 3, 2026, 5:55 PM UTC 100 780 ms 0 0 ms 1.1 kB 3/3 ±0 2,479 0% 19.4s Wayback
Sep 26, 2026, 2:10 PM UTC 100 797 ms 0 0 ms 727 B 3/3 ±0 3,387 +36% 19.7s Wayback
Sep 19, 2026, 12:55 PM UTC 100 778 ms 0 0 ms 730 B 3/3 ±0 2,463 -1% 19.8s Wayback
Sep 12, 2026, 11:31 AM UTC 100 786 ms 0 0 ms 729 B 3/3 ±0 2,507 +1% 20.1s Wayback
Sep 5, 2026, 8:07 AM UTC 100 772 ms 0 0 ms 1.1 kB 3/3 ±0 2,284 -8% 19.1s Wayback
Aug 29, 2026, 5:48 AM UTC 100 896 ms 0 0 ms 726 B 3/3 ±0 3,014 +21% 19.3s Wayback
Aug 20, 2026, 9:27 PM UTC 100 797 ms 0 0 ms 1.1 kB 3/3 ±0 3,375 +36% 19.9s Wayback

Embed this score

Use this web component to show eleventy-starter-typescript.vercel.app's scores on any website, updated whenever this instance re-measures. Don’t forget to bundle the speedlify2-score.js component code into your site!

<speedlify2-score speedlify-url="https://www.speedlify.dev/" url="https://eleventy-starter-typescript.vercel.app/"></speedlify2-score>